Farmers try a new pesticide to prevent damage to their crops. They plant 3 fields. #1 has traditional pesticide. #2 has a new environmentally-friendly pesticide. #3 is left untreated and will be used as a control group. If field #2 has pest damage similar to field #3, you might conclude that...
ASAP!!!!!!!!!!!!
Write a paragraph explaining the flow of matter through your food web.
I WILL ATTACH A SCREENSHOT OF THE FOOD WEB
Answer:
Explanation:
The flow of matter is connecting to all of the subjects involved. Several animals benefit off of the plants, then their predators benefit off of them, and so on. If even one of the factors of this food web were to go extinct, the entire thing would be messed up.
Why does the word antibiotic suggest that these medications would be ineffective against viruses?
Answer:
Antibiotics cannot kill viruses because bacteria and viruses have different mechanisms and machinery to survive and replicate. The antibiotic has no “target” to attack in a virus. However, antiviral medications and vaccines are specific for viruses.
what is a scientific hypothesis? what characteristics must a hypothesis have to be useful in science?
Answer:
A scientific hypothesis must meet two criteria:
Explanation:
A scientific hypothesis must be testable. A scientific hypothesis must be falsifiable. hope this helps you :) god loves you :)
A scientific hypothesis proposes an explanation for an event that happens. We can observe it but not explain it, so we suggest a possible explanation. The characteristics that a hypothesis has to have are:
TestabilityFalsability
A scientific hypothesis suggests an explanation for something that we observe in nature but can not explain. We formulate them using the format if/then. In the first part, we propose the possibility with if. In the second part, we propose the outcome with then. For example, If humans don't eat meat, then they lack Ferrum.
The two characteristics that a scientific hypothesis must have are:
Testability:Scientists have to be able to do experiments to get information and prove the hypothesis to be correct or not.
Falsability:It means that the hypothesis, after experiments and observations, can be refuted.
In conclusion, a scientific hypothesis suggests a solution or explanation. It must have the characteristics of testability and falsifiability to be useful in science.
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Abe drank 5712 mL (milliliters) of diet coke. His wife Martha drank 7.04L of diet coke. How much more diet coke did Martha drink
IN LITERS? SHOW YOUR WORK
Answer:
Martha drank 1328mL or 1.328 Litres more of diet coke
Explanation:
The first step in solving this problem is to convert the two quantities to the same units.
For this problem, we can choose to work in milliliters.
Converting 7.04L to milliliters
To do this we simply multiply by 1000 because 1000mL makes one Litre.
7.04 X 1000 = 7040 mL
Once the two quantities are in the same units, the next step is to subtract them.
7040 mL - 5712 mL = 1328mL
Therefore Martha drank 1328mL or 1.328 Litres more of diet coke
Where is most of Earth’s 3 percent of fresh water found? oceans ice water vapor lakes
Answer:
I feel like it should be ice.
Explanation:
most of that three percent is inaccessible. Over 68 percent of the fresh water on Earth is found in icecaps and glaciers, and just over 30 percent is found in groundwater. Only about 0.3 percent of our freshwater is found in the surface water of lakes, rivers, and swamps.
About 3% of fresh water supply on earth, most of it is bound up as ice in the polar ice caps.
What is Fresh water?
The term fresh water is a term that is used to describe the water that can be used for drinking as well as other functions. It so different from the salty water that can be found in the oceans.
Although there is only about 3% of fresh water supply on earth, most of it is bound up as ice in the polar ice caps.
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Which of the following abnormalities demonstrates a cranial defect? Select one: a. Encephalocele b. Cystic hygroma c. Holoprosencephaly d. Agenesis of the corpus callosum
Answer:
The correct answer is encephalocele.
Explanation:
The cystic hygroma is a malformation in the neck or upper abdominal area and holoprosencephaly is a malformation or alteration in the facial area, not in the cranial area.
The only one where the shape of the skull is altered (mainly the area of the calotte) is the encephalocele.
Which element is in abundance in the crust but not in the mantle?
A. magnesium
B. carbon
C. oxygen
D. silicon
Answer:
Carbon is in abundance in the crust but not in mantle
Oxygen diffuses from the alveoli into surrounding capillaries.Oxygen diffuses from the alveoli into surrounding capillaries. Oxygen is carried through blood vessels to a capillary.Oxygen is carried through blood vessels to a capillary. Oxygen diffuses from the blood to the body's tissues.Oxygen diffuses from the blood to the body's tissues. Oxygen binds to a molecule of hemoglobin.Oxygen binds to a molecule of hemoglobin. Oxygen enters a red blood cell.Oxygen enters a red blood cell.
Answer:
The oxygen enters the bloodstream from the alveoli, tiny sacs in the lungs where gas exchange takes place (Figure below). The transfer of oxygen into the blood is through simple diffusion. ... While oxygen moves from the capillaries and into body cells, carbon dioxide moves from the cells into the capillaries.
Explanation:
A microbiologist is attempting to determine the size of a microbial population and has employed several methods. She noticed that the direct count she obtained using a counting chamber and microscope was much higher than her estimate from doing a viable plate count. This discrepancy was encountered during multiple trials. What is the most likely reason for the discrepancy
Answer:
The options are
A. She did not correctly do the serial dilutions to the viable plate count
B. Many organisms viewed during the direct count may be dead
C. The organisms were not readily cultured on the viable count, either because many were dead or because the medium and growth conditions used for the viable count will not support the growth of the microorganism
D. The medium and growth conditions used for the viable count will not support the growth of the organisms
The answer is C. The organisms were not readily cultured on the viable count, either because many were dead or because the medium and growth conditions used for the viable count will not support the growth of the microorganism
Explanation:
The discrepancy encountered during multiple trials which involved noticing that the direct count she obtained using a counting chamber and microscope was much higher than her estimate from doing a viable plate count was most likely as a result of the organisms were not readily cultured on the viable count, either because many were dead or because the medium and growth conditions used for the viable count will not support the growth of the microorganism.
Which of the following is consumed by producers?
A. Primary consumers
B. Tertiary consumers
C. Secondary consumers
D. Producers make their food
Plants grow towards sunlight what characteristic of living things is this
Answer:
Phototropism.
Explanation:
It refers to the tendency of plants to grow toward the light which they need to produce food for themselves.
The nucleus of an atom contains
Answer:
The nucleus (center) of the atom contains the protons (positively charged) and the neutrons (no charge). The outermost regions of the atom are called electron shells and contain the electrons (negatively charged).
Explanation:
If a scientist is studying the evolutionary relationship between two species of birds, what tool could she use to help her chart their relationship
Scientists collect information that allows them to make evolutionary connections between organisms. Similar to detective work, scientists must use evidence to uncover the facts. In the case of phylogeny, evolutionary investigations focus on two types of evidence: morphologic (form and function) and genetic.
Every day, people cook with and consume a variety of foods that contain lipids. Some foods are healthier sources of
lipids than others. The table shows the amount of saturated fat in various foods.
Food (1 tbs or 14 g)
Olive oil
Margarine
Butter
Lard
Canola oil
Amount of Saturated Fat in Foods
Saturated fat (g)
2
2
7
1
Which food is the least healthy source of lipids, based on the data in the table?
margarine
lard
butter
canola oil
Answer:
C
Explanation:
it has more fat then the rest
i just took the test too
Answer:
butter
Explanation:
A non living thing such as a bicycle does not grow.
However, a crystal immersed in a saturated solution
may increase in size. How is this change different
from that of a living organism?
Answer:
In living organisms, the growth is permanent, and is usually due to an increase in cells. The crystal does not contain cells, and the change in size is due to a chemical process which can also be reversed using other chemical processes.
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Our current understanding of evolution is called a theory because it has been supported repeatedly as new discoveries have been made. proven to be exactly true as originally proposed. corroborated by data that were gathered during a single experiment. developed from the postulates of many scientists.
Answer:
supported repeatedly as new discoveries have been made.
Explanation:
Evolution is called a theory yes this is a true statement as a theory can be changed ad it has records of evolution.
Scientists communicate approximately evolution as a theory, for instance, simply as they communicate approximately Einstein's rationalization of gravity as a theory. A theory is a concept approximately how something in nature works that have long gone thru rigorous checking out thru observations and experiments designed to show the concept proper or wrong. What is evolution?Evolution is a technique that affects adjustments withinside the genetic content material of a populace over time. There are trendy instructions for evolutionary change.
Thus it is clear that evolution is called a theory because it has been supported repeatedly as new discoveries have been made.
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Describe how an enzyme’s structure affects its function
Explanation:
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4
adenine,thyamine,cytocine,guanine
Do ionic bonds give electrons?
Answer:
In ionic bonds, there is a transfer of electrons from one atom to another. Because of the transfer of electrons, the atoms that gain electrons become negatively charged, while the atoms that lose electrons will be positively charged. [1] If the atom has an additional electron, then the atom becomes a negative ion, known as anion. Meanwhile, if the atom loses electrons, then the atom becomes a positive ion or cation. [2] Because of the difference in charge between ions (positive ions and negative ions), the positive and negative ions will attract each other by electrostatic forces. This event is the basis of ionic bonding.
#sorry if wrong
A student is studying the movement of an object undergoing uniform motion.
What is the velocity of the object?
А Its velocity is zero.
B Its velocity is increasing.
с. Its velocity is decreasing,
D . Its velocity is constant.
Answer:
Explanation:
its velocity is constant
WILL MAKE BRAINLY
One factor that could account for a drop in the water table is:
A. more clouds.
B. more wind.
C. less porous soil.
D. less rain and snow.
Answer:
D: less rain and snow.
Explanation:
D. Less rain and snow
how to make backing soda
Answer:
The soda ash is obtained in one of two ways: it can be manufactured by passing carbon dioxide and ammonia through a concentrated solution of sodium chloride (table salt). In our case, it is mined in the form of an ore called trona.
Formed elements in blood are ______, and plasma is _______. Select one: a. blood clots; proteins b. mostly lipids; the matrix c. the cells; the liquid portion of blood d. lacking in protein; regulator of blood osmolality e. acellular; cellular
Answer:
option A is correct
Explanation:
Formed elements in blood are blood clots and plasma is proteins. Hence option a is correct.
What is blood?Blood is defined as a fluid that circulates regularly and gives the organism nutrients, oxygen, and waste elimination. Blood is pumped into the pulmonary arteries in the lungs from the right ventricle after entering the right atrium from the body. After absorbing oxygen, the blood returns to the heart through the pulmonary veins, passing through the left atrium, left ventricle, and aorta before leaving the body through the tissues.
In plasma, there are 8% to 9% solids and 91% to 92% of water. It primarily consists of: Blood clotting is aided by coagulants, particularly fibrinogen. Albumin and globulin are two plasma proteins that contribute to keeping the colloidal osmotic pressure at 25 mmHg.
Thus, formed elements in blood are blood clots and plasma is proteins. Hence option a is correct.
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A population of bacteria sees an increase in the number of bacteria resistant to a certain antibiotic over a number of generations. This is known as ______________.
Answer: MICROEVOLUTION
Explanation: Microevolution simply means those changes in the alleles frequencies of an organism over time.
In other words,we will say that microevolution is the generation to generation change in a population's frequencies of alleles.
These changes can occur due to natural or artificial selection,
Gene flow, mutation and genetic drift.
From the question asked,when a population of bacteria sees an increase in the number of bacteria resistant to a certain antibiotic over a number of generations,it is simply known as microevolution.
How would siamangs be affected if the rain forests they live in produced less fruit? Explain your reasoning.
Answer:
Siamangs are arboreal,in habitat.They are species of gibbons found in the rain forest. They are skillful at moving among tree branches,their swift movement made them to escape predators.They are very noisy.
These animals are light weight because of light bones.Their head is small and round in shape.They have long arms,longer than the legs.Their body is slim.
75 of their diet is made up of fruits.They are omnivores like human thus they eat plants parts,insects, eggs of small birds etc.
They are endangered species.This is because of rapid deforestation of the rain forest habitats for developments. If 75% of their diet (which is fruits is not available)due to less fruits production, definitely they will be endangered and go to extinction from starvation as other sources of food would not sustain them.
Explanation:
In what stage do stars spend the large majority of their life cycles? Why
Analise as alternativas a seguir e marque aquela que NÃO descreve uma função do sistema nervoso. 1 ponto a) captar e interpretar estímulos do ambiente. b) transportar informações. c) criar respostas por meio de movimentos, sensações ou constatações. d) transportar de nutrientes e oxigênio para o corpo. e) controlar a atividade dos músculos.
English translation of the question is as follows:
Analyze the alternatives below and check the one that does NOT describe a nervous system function. 1 point
a) capture and interpret stimuli from the environment.
b) carry information.
c) creating responses through movements, sensations or findings.
d) transport nutrients and oxygen to the body.
e) control the activity of the muscles.
Answer:
d) transport nutrients and oxygen to the body.
Explanation:
Nervous system functions to communicate with other cells through synapses and through membrane-to-membrane transfer that allows rapid transmission of signals that controls muscle activity and create responses through movements, sensations or findings.
Nervous system do not function to transport nutrients and oxygen to the body.
Hence, the correct option is "d)".
does sound travel at the same speed through all materials
Answer:
no
Explanation:
Sound travels fastest in liquid than in air and than in solid
Water> Air> Solid
Hope it helps :)
Answer:yes
Explanation:
which of these particles have the biggest impact on the elements mass?
Answer:
Protons and neutrons
Explanation:
State the differences between a typical Plant cell and an animal cell.